Probably the biggest contribution a non-coder could do is bug-triaging, which means: Look into newly reported issues and try to reproduce them and check for dup

Probably the biggest contribution a non-coder could do is bug-triaging, which means: Look into newly reported issues and try to reproduce them and check for duplicate issues. In the best case, you can simply reproduce it. Then say so in a comment to the issue. However more probable, you have to ask the reporter for more details or try different versions and environments.